Know what is useless? Your Class.

[Wolf_Gang]

I fail to see your point on Gladiator, cause Gladiator is a tank before turning Paladin.

That's what I mean concerning the limitations of the class system. If a Glad were given a job that wasn't a tank i.e. Red Mage, they would have to change all the tanking skills of Gladiator, or make RDM a tank.